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Finding the Fourth Proportional to 17,868.40, 26,802.60 and 9,995.20

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Solution

The fourth proportional to 17,868.40, 26,802.60 and 9,995.20 is: 14,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.40 : 26,802.60 = 9,995.20 : x
  2. Step 2: Convert to fraction form
    17,868.40/26,802.60 = 9,995.20/x
  3. Step 3: Cross multiply
    17,868.40x = 26,802.60 × 9,995.20
  4. Step 4: Simplify right side
    17,868.40x = 267,897,347.52
  5. Step 5: Solve for x
    x = 267,897,347.52/17,868.40
  6. Step 6: Final answer
    x = 14,992.80

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